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Question1Defineallocativeefficiency.
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Allocativeefficiencyoccursattheequilibriumpointwherebothconsumerandproducersurplusesaremaximised.
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Question2Usingthediagrambelow,fullyexplaintheimpactofanincreaseindemandforfiggsduetothediscoveryofhealthbenefits.
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AnincreaseinthedemandforfiggsduetohealthbenefitsmeansthedemandforfiggsincreasesfromDtoD2.Attheoldequilibriumpriceof$3thereisnowashortageof20000boxesoffiggs.Duetotheshortageconsumerswillbidthepriceup.Asthepriceincreasesthequantitydemandedwilldecreasefrom50000boxesto40000boxesbecauseconsumerscan’taffordtobuyasmanyandothersimilarproductsarenowrelativelycheaper.Thequantitysuppliedwillincreasefrom30000to40000becauseproducerswillcovertheirextramarginalcostsofproductionmakemorerevenueandprofits.Themarketwillgotothenewequilibriumpriceof$3.50andquantityof40000boxes.
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Thepriceconsumerspaybeforethetax=$2.80.Thepriceconsumerspayafterthetax=$3.00Producersreceive$2.60afterthetax.Theperunitamountofthetax=$0.40.Governmentrevenuefromthetax=$8000.Lossinconsumersurplus=$0.20x20000+½0.20x10000=5000Lossinproducersurplus=$0.20x20000+½0.20x10000=5000DeadweightLoss=½0.40x10000=2000.Thereisadeadweightlossduetotheindirecttaxbecausethegainingovernmentrevenueof$8000islessthanthelossinproducerandconsumersurplusesof$10000($5000+$5000)sothereisalossinwelfare/efficiencytosocietycausedbytheindirecttax.
Question3UsethediagramtofullexplaintheimpactonthemarketofanindirecttaxonPinkbull.Calculate,pricebeforetax,priceconsumerspayafterthetax,thepriceproducersreceiveafterthetax.Thegovernmentrevenuefromthetax.Lossinconsumersurplusandproducersurplus.Thedeadweightloss.Explainwhythereisadeadweightloss.
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WithaminimumpriceimposedthenewmarketpricewillbeatpointCandquantitysoldatpointE.ConsumersurplusbeforetheminimumpricewastheareaAKF.ConsumersurplusaftertheminimumpriceistheareaABC.ProducersurplusbeforetheminimumpricewasFGK.ProducersurplusaftertheminimumpriceisBCGOThedeadweightlosscausedbytheminimumpriceistheareaBKOThegaininproducersurplusofBCFMislessthanthelossinconsumersurplusofBCKFandsothereisadeadweightlossofBKO-thereisalossinwelfare/efficiencytosocietycausedbytheminimumprice.
Question4Usethediagramtofullyexplaintheimpactofaminimumpriceonthemarket.Whatisconsumersurplusbeforeandaftertheminimumprice.Whatproducersurplusbeforeandaftertheminimumprice.Whatisthedeadweightlosscausedbytheminimumprice.Explainwhythereisadeadweightloss.
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Agoodgrowingseasonfororangeswillcausethepricefororangestodecrease.Orangesareacostofproductionfororangejuiceandsothecostofproductionfororangejuicewilldecrease.ThiswillcausesupplyfororangejuicetoincreasefromStoS2.Attheoldmarketpricethereisnowashortageinthemarket.Producerswillreducetothepricetoselloffexcessstock.Asthepricedecreasesthequantitysuppliedwilldecreaseasproducedon’tcovertheirmarginalcostsofproductionandmakelessrevenueandprofit.Thequantitydemandedwillincreaseasconsumerscanaffordtobuymoreatthelowerpriceanditisnowrelativelycheaperthanotherfruitdrinks.Themarketwillgotothenewequilibriumpriceof$1.20andequilibriumquantityof40000litres.
Question5Usethediagramtofullyexplaintheimpactofanincreaseinsupplyduetoagoodgrowingseasonfororangesonthemarketfororangejuice.
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Aquotaisarestrictionontheamountthatcanbesold.AfterthequotathenewmarketpriceisCandtheamountsoldisI.ConsumersurplusbeforethequotaisADE.ConsumersurplusafterthequotaisABCProducersurplusbeforethequotaisDEH.ProducersurplusafterthequotaisCBFH.ThedeadweightlosscausedbythequotaisBEF.ThegaininproducersurpluscausedbythequotaofCDOBislessthanthelossinconsumersurplusofCBEDandsothereisadeadweightlossofBEFThereisalossinwelfare/efficiencytosocietycausedbythequota.
Question6Usethediagramtofullyexplaintheimpactofaquotaonthemarket.Whatisconsumersurplusbeforeandafterthequota?.Whatproducersurplusbeforeandafterthequota?Whatisthedeadweightlosscausedbythequota?Explainwhythereisadeadweightloss.
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WiththesubsidysupplyincreasesfromStoS+subsidy.Thepriceconsumerspaybeforethesubsidywas=$5.Thepriceconsumerspayafterthesubsidyis=$4.50.Thepriceproducersreceiveafterthesubsidyis=$5.50.Theperunitamountofthesubsidy=$1.Governmentspendingonthesubsidy=$1x40000=$40000.Thegaininconsumersurplusfromthesubsidy=$0.5x30000+½$0.5x10000=$17500Thegaininproducersurplusfromthesubsidyis=$0.5x30000+½$0.5x10000=$17500Thedeadweightlossfromthesubsidy=½$1x10000=$5000.Thegaininproducerandconsumersurplusesfromthesubsidyof$$35000islessthanthetotalgovernmentspendingonthesubsidyof$40000andsothereisadeadweightlossof$5000tosociety-thisisthelossinwelfare/efficiencycausedbythesubsidy.
Question7UsethediagramtofullexplaintheimpactonthemarketofasubsidyonManukahoney.Calculate,pricebeforethesubsidy,priceconsumerspayafterthesubsidy,thepriceproducersreceiveafterthesubsidy.Thegovernmentspendingonthesubsidy.Gaininconsumersurplusandproducersurplus.Thedeadweightloss.Explainwhythereisadeadweightloss.
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